// Copyright(c) 2019 - 2020, #Momo
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met :
// 
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
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// 3. Neither the name of the copyright holder nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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#pragma once

#include "Platform/GraphicAPI.h"
#include "Core/Resources/Vertex.h"

namespace MxEngine
{
    class RenderHelperObject
    {
    protected:
        size_t vertexOffset, vertexCount;
        size_t indexOffset, indexCount;
        VertexArrayHandle VAO;
    public:
        RenderHelperObject() = default;
        RenderHelperObject(size_t vertexOffset, size_t vertexCount, size_t indexOffset, size_t indexCount, VertexArrayHandle vao)
            : vertexOffset(vertexOffset), vertexCount(vertexCount), indexOffset(indexOffset), indexCount(indexCount), VAO(std::move(vao)) { }

        VertexArrayHandle GetVAO() const;
        VertexBufferHandle GetVBO() const;
        IndexBufferHandle GetIBO() const;
        size_t GetIndexCount() const { return this->indexCount; }
        size_t GetVertexCount() const { return this->vertexCount; }        
        size_t GetIndexOffset() const { return this->indexOffset; }
        size_t GetVertexOffset() const { return this->vertexOffset; }
    };
}